长寿进化中的生活史权衡与生态动态
Life-history trade-offs and ecological dynamics in the evolution of longevity.
作者信息
Bonsall Michael B, Mangel Marc
机构信息
Department of Applied Biological Sciences and NERC Center for Population Biology, Imperial College London, Silwood Park Campus, Ascot SL5 7PY, UK.
出版信息
Proc Biol Sci. 2004 Jun 7;271(1544):1143-50. doi: 10.1098/rspb.2004.2722.
Longevity is a life-history trait that is shaped by natural selection. An unexplored consequence is how selection on this trait affects diversity and diversification in species assemblages. Motivated by the diverse rockfish (Sebastes) assemblage in the North Pacific, the effects of trade-offs in longevity against competitive ability are explored. A competition model is developed and used to explore the potential for species diversification and coexistence. Invasion analyses highlight that life-history trait trade-offs in longevity can mitigate the effects of competitive ability and favour the coexistence of a finite number of species. Our results have implications for niche differentiation, limiting similarity and assembly dynamics in multispecies interactions.
长寿是一种受自然选择塑造的生活史特征。一个未被探索的结果是，对这一特征的选择如何影响物种组合中的多样性和多样化。受北太平洋多种岩鱼（Sebastes）组合的启发，本文探讨了长寿与竞争能力之间权衡的影响。构建了一个竞争模型，并用于探索物种多样化和共存的潜力。入侵分析表明，长寿方面的生活史特征权衡可以减轻竞争能力的影响，并有利于有限数量物种的共存。我们的结果对多物种相互作用中的生态位分化、限制相似性和群落构建动态具有启示意义。
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